Music-leaf turner



2 Sheets-Sheet 1.

' '@(No Model.)

CfE. SHULER.

MUSIC LEAP TURNER.

Patented Apr. 20, 1897.

(No Model.) 2 Sheets-Sheet 2.

G. E. SHULER. MUSIC LEAF TURNER.

No. 581,041. Patented Apr. 20, 1897.

/5 did/MY @J/@ @www fwsrEShuzer UNITED STATES ATnNT @unica CHESTER E. SHULFR, OF CLIFTON, KANSAS.

MUSlG-LAF TURNER.

SPECIFICATION forming part of Letters Patent No. 581,041, dated .April 20, 189'?.

Application filed July 6, 1896. Serial No. 598,190. (No model.)

To all whom it' may carecer/'1 Be it known that l, CHESTER F. SHULER, a citizen of the United States, residing at Clifton, in the county of Tashington and State of Kansas, have invented a new and useful Music-Leaf Turner, of which the following is a specification.

My invention relates to a music-leaf turner, and has for its object to provide a simple and eflicient construction and arrangement of parts whereby the leaves of a book or sheetmusic may be turned successively in either direction by the depression of a key carried by a suitable operating-lever and adapted to be arranged within convenient reach of the performer.

Further objects and advantages of this invention will appear in the following description, and the novel features thereof will be particularly pointed out in the appended claims.

Figure l is a perspective view of a musicleaf turner constructed in accordance with my invention. Fig. 2 is a vertical section of the same. Fig. 3 is a detail viewof the lower operating-disk and catch. Fig. el is a detail horizontal section taken below and contiguous to the plane of t-he central rest, showing the spring-actuated detents for engaging the turning-amis. Fig. 5 is a detail view in perspective of the disks, on an enlarged scale, showing turning-arms and the catches in operative relation therewith. Figs. G, 7, S, and 9 are detail diagrammatic views of the disks and arms, showing the successive relative positions of the parts.

Similarnumerals of reference indicate corresponding parts in all the figures of the drawings.

l designates a rack provided with a central rest 2 and terminal spring holding-arms 3, and beneath said central rest are mounted the coaxial turning-arms Ll, provided with terminal clips 5. Arranged below said rest and respectively upon opposite sides of the common horizontal plane of the turning-arms are the upper and lower operating-disks G and 7, provided, respectively,with peripheral catches 8 and 9 to engage lateral studs or projections l0 and ll on the turning-arms, said studs projecting, respectively, over the peripheries of the operating-disks in the paths of the catches,which are located, respectively, on the under surface of disk 6 and the upper surface of disk 7.

Connected with the operating disks are means for turning the same in opposite directions, and the cat-ches, which are adapted to engage the shoulders or projections en the turning-arms when the disks are moved, respectively, in opposite directions, (said catches being mounted to project in opposite directions,) consist of spring-extended pivotal tongues l2, having terminal rounded cxtensions 13,which prevent the engagement of the extremity of the tongue with any but the last tu rning-arm in the direction of movement of the disk. In other words, if the turnin g-arms are arranged at the right of the rack and the upper operating-disk is moved to turn a leaf the end of the tongue carried by said disk is held out of engagement with the turnin g-arms, by the Contact of its rounded extension with the lateral studs or projections on said arms, until the uppermost or foremost turning-arm is reached, when said rounded extension being released by having passed said foremost turning-arm the catch is advanced by its actuating-spring li to bring the extremity of the tongue in engagement with said stud or projection. By this arrangement only the single succeeding turning-arm can be operated, and hence the leaves may be turned successively by an alternate movement of either operating-disk in opposite directions. rlhe tu rnin g-arms are held in either position by means of holding-springs 15 and 1G, located, respectively, upon opposite sides of the operating-disks.

rlhe disks are normally held with their catches in position for engagement with the studs or projections on the turning-arms by means oi' return-springs 17, which are xed at one end to the disks and at the other end to the fixed spindle lS, upon which said disks, in common with the turning-arms, are mounted, and in the construction illustrated the means employed for turning the disks in the opposite direction or in opposition to the tension of their return-springs to aetuate the turning-arms consist of key-levers 19 and 20, flexibly connected, respectively, as by cords 2l and 22, with suitable guide-pins 23 on the disks, said pins being arranged in circular series around the springs to hold the cords out of contact ther with, and the cords being coiled around said pins in the opposite direction to that in which the springs, respectively, are wonnd. The intermediate jortions ol' the llexible connections traverse directionpulleys 2l, whereby when a key-lever is depressed the disk connected therewith is turned through an are of approximately a semicircle to move one of the turning-arms from a position at one side ot the rack to a corresponding position at the opposite side. Each key is thus connected with a disk.

ln order to adapt the improved rack for attachment to the desk of a musical instrument and hold the same firmly in position, l employ a bottom ledge or rest 25, adapted to bear npon the book-rest 2G, which is shown in dotted lines in Fig. 2, and a slide 27, terminally mounted in guides 2S, formed in parallel upright bars 29 on the racl: and having a clothed lip 30 to engage the np )er bead the desk. Said slide is secured at the desired adjustment by means of a threaded stem 3l, engaged by a thumb-nut 32, which bears npon a fixed cross-bar 33 between said nprights 2Q.

From the above description it will be seen that inasmuch as the turning-arms,which are mounted upon a common axis, are provided at a common distance from their axis with the studs or projections for engagement by the catches on 'the operating-disks said arms are interchangeable and may be replaced at a small cost in case of breakage or other injury. l am enabled to construct the turningarms with projections arranged at a common distance from the axis by reason of shaping `he trip extension 13 with a bow which extends outwardly beyond the extremity ot the catch. This carries the extremity et the tongue inwardly out et reach et the stnds or projections until all but the foremost tnrning-arm have been passed.

The selectionby the catches of the iforeniiost stud or projection, or that which is carried by the terminal arm of a series, in either oi the adjusted positions ot the arms is due to the tact that as a disk is turned to cause the operation of a turning-arm the bowed extension 13, which is carried by the catch en said dish, glides along the inner sides or edges et the studs or projections and is thereby held repressed against the tension ot the actuatingspring of the catch until said extension has passed the stud or projection of the temnina` turning-arm. As soon as this extension has passed this terminal stud the catch is returned to its normal or extended position by its actuating-spring and thereby is arranged with its extremity in position to engage said stud or projection oi the terminal arm. The

extension or outward movement of the catch cannot occur until after the bowed extension has passed the stud or projection et the terminal arm, and when tlins extended the eX- tremity of the catch is in advance of all of senesi the studs or projections except that which is Carried by the terminal arm. Hence the continued rotation of the disk causes the terminal arm to be advanced and swung therewith to the opposite adjusted position.

Various changes in the form, proportion, and the minor details of construction maybe resorted to without departing from the spirit er sacriiicing any ot the advantages ot this invention.

llaving described my invention, what l claim isl.. ln a music-leaf turner, the combination with a rack, ol' coaxial interchangeable turning-arms having studs or projections spaced at a common distance trom their connnon axis, operr-ting-dislis provided respectively with ojipesitely-extending yi lding catches to engage said studs or projections olf the turning-arms, and means carried by cach catch for holding the same repressed until the engaging portion et the catch reaches the foremost stud or projection, substantially as specified.

2. ln a music-leaf turner, the combination ot coaxial turning-arms arranged to swing in a common plane and each provided with upper and lower oppositely-extending studs or jn'ojections spaced at a common distance from the common axis of the arms, Operatingdislzs mounted respectively above and below the plane ot' and coaxially with the turningarms, a selecting peripheral catch on each disk to engage the studs er projections ot thc foremost arms in either adjusted position ot' the latter, springs tor `ri-iturniirg the disks in opposite directions, and means Vfor moving the disks in opposition to the tension ol' their return-springs, substantially as specified.

ln a music-lern".v turner, the combination with a rack, ot turning-arms having stnds or projections arranged at a uniform distance trom the common avis ot' the arms, operatingdisks mounted coaxially with and respectively above and below the plane ot' the arms, means for tu'riiing the dislzs iin opposite directions, and oppositely-disposed catches on the operating-disks, each consisting oli' a spring-extended tcngne adapted to terminally engage the studs or projections on the turning-arms, and a curved extension if) bowed outwardly beyond the extremity ol' the tongue for contact with the studs or projections to hold the extremity ol the tongue ont ot engagement with the studs or jnojections nntil the bowed extension has )assed that et the terminal or foremost turning-arm ot' a series when the tongue springs outward to engage said stud et' tite terminal arm, sul stantially as speciiied.

ln testimony that l claim the foregoing as my own l have hereto allixed my signature in the presence of two witnesses.

Cllltt'lllllt E. SHULER. litnesses:

l. il. llliinrorn, il. Wnimans.

lOO

IIO 

